eMachine 555 drivers

I have to re-install windows xp on my someone's emachine 555. I can't find any drivers for it (that seem legit and orderly) online... Does anyone have any suggestions as to where I can download legit drivers? The machine was purchased in the UK (as far as I know - if that helps)...

My first port of call would be to try to identify the motherboard - manufacturer and model. Something like Belarc Advisor might be able to do it for you - or alternatively, you'll need to open the case. Once you know that, it should be just a question of going to the relevant manufacturer's web site.